1. i in the living room one day, when i him scratching at the door. 1.1) a) have sat b) have been sitting c) was sitting 1.2) a) hear b) heard c) was hearing 2. when i opened the door i to see him covered in dirt all over. a) surprised b) was surprprised c) was surprising 3. i spot looking like. a) have never been seen b) never saw c) had never seen